U.S., April 8 -- ClinicalTrials.gov registry received information related to the study (NCT07515716) titled 'Effects of High Flow Humidified Oxygen on Umbilical Artery Acid-base Balance in Cesarean Section Under Spinal Anesthesia' on March 31.
Brief Summary: Spinal anesthesia is the most commonly used anesthetic technique for cesarean section in developed countries, but vasodilation and a decrease in systemic vascular resistance caused by sympathetic blockade result in hypotension in 7-74% of parturients. The fetus receives oxygen from the mother via uteroplacental blood flow, and because uteroplacental circulation during pregnancy has minimal autoregulation, uterine blood flow changes in proportion to maternal blood pressure. Therefore, a...